LB1996 [SANYO]
Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive; 三相无刷电机驱动器的CD - ROM驱动器主轴
| 型号： | LB1996 |
| 厂家： | 
SANYO SEMICON DEVICE |
| 描述： | Three-Phase Brushless Motor Driver for CD-ROM Spindle Drive |
| 文件： | 总9页 (文件大小：76K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
Ordering number : EN5977A
Monolithic Digital IC
LB1996
Three-Phase Brushless Motor Driver
for CD-ROM Spindle Drive
Overview
Package Dimensions
unit: mm
The LB1996 is a 3-phase brushless motor driver
especially suited for CD-ROM spindle motor drives.
3227-HSOP24
[LB1996]
15.3
4.3
0.3
24
Functions
13
• Current linear drive
• Control V type amplifier
• Separate power supply for output upper side bias
circuit allows low output saturation by boosting this
power supply only (useful for 5V power supply types).
• Upper side current detection technique reduces loss
voltage of current detection resistor. Voltage effect of
this resistor reduces internal power dissipation of IC.
• Built-in short braking circuit
12
0.85
1
0.25
0.3
0.8
SANYO : HSOP24
• Built-in reverse blocking circuit
• Hall FG output
• Built-in S/S function
Pd max – Ta
2.0
1.9
• Built-in current limiter circuit
• Built-in Hall power supply
With substrate
1.6
1.2
0.8
• Built-in thermal shutdown circuit
• 1 Hall FG/3 Hall FG switchable
IC only
0.4
0
–20
0
20
40
60
75 80
100
Ambient temperature, Ta – °C
Any and all SANYO products described or contained herein do not have specifications that can handle
applications that require extremely high levels of reliability, such as life-support systems, aircraft's
control systems, or other applications whose failure can be reasonably expected to result in serious
physical and/or material damage. Consult with your SANYO representative nearest you before using
any SANYO products described or contained herein in such applications.
SANYO assumes no responsibility for equipment failures that result from using products at values that
exceed, even momentarily, rated values (such as maximum ratings, operating condition ranges, or other
parameters) listed in products specifications of any and all SANYO products described or contained
herein.
SANYO Electric Co.,Ltd. Semiconductor Company
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
62599RM(KI) No. 5977-1/9
LB1996
Specifications
Maximum Ratings at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
V
V
V
1 max
Power supply voltage
7.0
14.4
14.4
14.4
CC
2 max
CC
V
3 max
CC
V
Applied output voltage
Applied intput voltage
Output current
V
max
max
max
V
O
V
V
1
V
IN
CC
I
1.3
0.8
A
O
Allowable power dissipation
Pd max
IC only
W
with substrate (114.3 x 76.1 x 1.6 mm3,
glass exposy)
1.9
W
–20 to +75
Operating temperature
Storage temperature
Topr
Tstg
°C
°C
–55 to +150
Operating Conditions at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
Power supply voltage
4 to 6
4 to 13.6
4 to 13.6
V
V
V
1
2
3
CC
CC
CC
≥ V
1
V
CC
V
Sample Application at Ta = 25°C
Parameter
Symbol
Conditions
Ratings
Unit
V
12V type
Regulated voltage
Unregulated voltage
Regulated voltage
4 to 6
4 to 13.6
4 to 6
V
1
CC
2 = V
V
3
CC
V
CC
5V type
V
1 = V
3
CC
V
CC
Boost-up voltage or regulated voltage
(Note)
V
2
4 to 13.6
V
CC
Note: When boost-up voltage is used at V 2, output can be set to low-saturation.
CC
No. 5977-2/9
LB1996
Electrical Characteristics at Ta = 25°C, V 1= 5V, V 2 = V 3 = 12V
CC
CC
CC
Ratings
typ
Conditions
Parameter
Symbol
Unit
min
max
[Power supply current]
Power supply current
8
mA
mA
µA
µA
µA
µA
V
= V
I
I
I
1
2
3
C
CREF
CC
CC
CC
0
V
V
V
V
= V
= V
C
C
CREF
150
250
CREF
Output idle current
200
30
I
I
I
1OQ
2OQ
3OQ
= 0V
CC
CC
CC
S/S
S/S
= 0V
= 0V
30
V
S/S
[Output]
V
1
1.0
0.3
Saturation voltage, upper side 1
lower side 1
I
= –0.5A, V 1 = 5V, V 2 = V 3 = 12V
V
V
V
V
V
OU
OD
OU
OD
O
CC
CC
CC
V
V
V
1
2
2
I
I
I
= 0.5A, V 1 = 5V, V 2 = V 3 = 12V
CC CC CC
O
O
O
Saturation voltage, upper side 2
lower side 2
0.3
= –0.5A, V 1 = V 3 = 5V, V 2 = 12V
CC
CC
CC
= 0.5A, V 1 = V 3 = 5V, V 2 = 12V
0.3
CC
CC
CC
V
Current limiter setting voltage
[Hall amplifier]
R
= 0.43Ω
0.37
CL
RF
V
Common mode input voltage range
Input bias current
Minimum Hall input level
[S/S pin]
1.2
V
–1.0
V
HCOM
CC
1
µA
I
HIB
60
V
mV
P-P
HIN
V
High level voltage
Low level voltage
Input current
2.0
V
V
V
1
S/SH
CC
V
I
0.7
S/SL
V
= 5V
= 0V
200
µA
µA
S/SI
S/S
S/S
I
V
Leak current
–30
S/SL
[Control]
I
V
V
= V
= 2.5V
= 2.5V
V
V
pin input current
pin input current
1
1
µA
µA
VC
C
C
CREF
C
I
= V
VCREF
CREF
CREF
Voltage gain
0.25
times
V
GV
V
∆V /∆V
CO
RF
C
V
V
= 2.5V
= 2.5V
Startup voltage
2.35
50
2.65
150
CREF
CREF
CTH
Startup voltage width
[Hall power supply]
Hall power supply voltage
Allowable current
∆V
mV
CTH
I
= 5 mA
0.8
V
V
H
H
I
20
mA
H
[Thermal shutdown]
Operating temperature
Hysteresis
T
Design target value
Design target value
150
180
15
210
°C
°C
TSD
∆T
TSD
[Short braking]
V
Brake pin at High level
Brake pin at Low level
[1 Hall FG/3 Hall FG switching]
4
0
5
1
V
V
BRH
V
BRL
FG
FG
pin at High level
pin at Low level
V
FSH
4
0
5
1
V
V
SEL
V
SEL
FSL
Note:
• During S/S OFF (standby), the Hall comparator is at High.
• Items shown to be design target values are not measured.
No. 5977-3/9
LB1996
Truth Table
Hall input
V
Control
Source –> Sink
U
W
L
V
C
Phase W –> Phase V
Phase V –> Phase W
Phase W –> Phase U
Phase U –> Phase W
Phase V –> Phase W
Phase W –> Phase V
Phase U –> Phase V
Phase V –> Phase U
Phase V –> Phase U
Phase U –> Phase V
Phase U –> Phase W
Phase W –> Phase U
H
1
2
H
H
L
L
H
L
H
L
L
H
L
H
3
4
5
L
H
L
H
L
H
L
L
H
H
H
L
L
H
L
6
H
Input:
H: Input 1 is higher in potential than input 2 by at least 0.2V.
L: Input 1 is lower in potential than input 2 by at least 0.2V.
Pin Assignment
V
U
1
2
3
4
5
6
24 PWR GND
23 W
OUT
OUT
OUT
V
V
2
3
22 V
21 V
CC
C
CC
CREF
RF
20 FC
19 FG
V
1
CC
SEL
FRAME GND
FRAME GND
LB1996
U
U
2
1
2
7
8
9
18 SIG GND
IN
IN
IN
IN
IN
IN
17 S/S
V
16 BRAKE
15 FG
V
1 10
2 11
1 12
W
W
14 RS
13 V
H
Top view
A11170
No. 5977-4/9
LB1996
Block Diagram
Waveform distributor
Matrix
Rotation direction detector
No. 5977-5/9
LB1996
Sample Application Circuit
1
2
3
4
5
6
V
PWR GND 24
23
OUT
0.1µF
0.1µF
U
W
OUT
OUT
VC 22
21
0.1µF
V
CC
V
CC
2
CTRL signal
3
V
CTRL reference voltage
CREF
0.2 to 0.5Ω
0.1µF
RF
FC 20
0.1µF
FG
V
CC
1
FG
19
SEL
SEL
LB1996
FRAME GND
FRAME GND
0.047µF
0.047µF
0.047µF
7
8
9
U
U
2
1
SIG GND 18
IN
S/S
S/S 17
BRAKE 16
FG 15
IN
V
IN
2
1
BRAKE
10 V
IN
11 W
12 W
2
IN
RS 14
1
IN
VH 13
A11171
Power supply - GND
Output - GND
Capacitor requirements may change depending on motor.
For some motors, capacitor between Hall inputs may not be needed.
Between Hall inputs
No. 5977-6/9
LB1996
Pin Descriptions
Pin number
Pin name
Pin voltage
4V to 13.6V
Equivalent circuit
Pin function
Source side predrive voltage supply
pin
3
V
V
2
3
CC
CC
Constant current control amplifier
voltage supply pin
4
6
4V to 13.6V
4V to 6V
Power supply pin for all circuits
except output transistors, source
predriver, and constant current
control amplifier
V
1
CC
V
1
Reverse detector pin
CC
10kΩ
14
15
R S
F G
Forward rotation: High
100µA
14 15
Reverse rotation: Low
1 Hall element or 3 Hall elements
waveform Schmitt comparator
combined output
A11172
U phase Hall element input and
reverse detector U phase Schmitt
comparator input pin
8
7
U
U
1
2
IN
IN
V
1
CC
25µA
Logic High indicates U 1 > U 2.
IN
IN
V phase Hall element input and
reverse detector V phase Schmitt
comparator input pin
8
7
9
200Ω
V
V
1
2
10
9
1.2V to
IN
IN
10
12
V
1–1V
200Ω
CC
11
Logic High indicates V 1 > V 2.
IN
IN
25µA
25µA
W phase Hall element input and
reverse detector W phase Schmitt
comparator input pin
12
11
W
W
1
IN
2
IN
A11173
Logic High indicates W 1 > W 2.
IN
IN
Hall element lower side bias voltage
supply pin
V
1
CC
75µA
13
V
13
H
30kΩ
2kΩ
A11174
When this pin is at 0.7V or lower, or
when it is open, all circuits are
inactive. When driving motor, set
this pin to 2V or higher.
V
1
CC
75kΩ
50kΩ
17
17
18
S/S
0V to V
1
CC
A11175
GND pin for all circuits except
output
SIG GND
V
1
CC
Control loop frequency compensa-
tor pin. Connecting a capacitor
between this pin and GND prevents
closed loop oscillation in current
limiting circuitry.
2kΩ
20
FC
20
20kΩ
5kΩ
A11176
Continued on next page
No. 5977-7/9
LB1996
Continued from preceding page
Pin number Pin name
Pin voltage
Equivalent circuit
Pin function
Control reference voltage supply
pin. Determines control start
voltage.
V
1
CC
21
2V to 3V
V
CREF
25µA
25µA
22
21
10kΩ
15kΩ
200Ω
200Ω
Speed control voltage supply pin
V type control technique
30kΩ
30kΩ
V
V
> V
< V
: Forward
C
C
CREF
: Slowdown
CREF
100µA
100µA
22
V
0V to V
1
CC
C
(Reverse-blocking circuit
prevents reverse rotation.)
A11177
23
24
1
W
OUT
W phase output
PWR GND
Output transistor GND
V phase output
V
2
CC
V
OUT
5
U
2
U phase output
OUT
3.9Ω
3.9Ω
Upper side output NPN transistor
collector pin (common for all 3
phases). For current detection,
23
24
1
2
connect resistor between V
3
5
RF
CC
pin and RF pin. Constant current
control and current limiter works
by detecting this voltage.
A11178
3 Hall FG/1 Hall FG switching
pin
V
1
CC
75kΩ
FG
19
SEL
19
FG
SEL
High –> 3 Hall FG
50kΩ
Low/Open –> 1 Hall FG
A11179
V
1
Short brake pin
CC
100µA
BRAKE:
High –> Short brake operation
Low/Open –> Motor drive operation
75kΩ
16
BRAKE
16
50kΩ
A11180
No. 5977-8/9
LB1996
Specifications of any and all SANYO products described or contained herein stipulate the performance,
characteristics, and functions of the described products in the independent state, and are not guarantees
of the performance, characteristics, and functions of the described products as mounted in the customer's
products or equipment. To verify symptoms and states that cannot be evaluated in an independent device,
the customer should always evaluate and test devices mounted in the customer's products or equipment.
SANYO Electric Co., Ltd. strives to supply high-quality high-reliability products. However, any and all
semiconductor products fail with some probability. It is possible that these probabilistic failures could
give rise to accidents or events that could endanger human lives, that could give rise to smoke or fire,
or that could cause damage to other property. When designing equipment, adopt safety measures so
that these kinds of accidents or events cannot occur. Such measures include but are not limited to protective
circuits and error prevention circuits for safe design, redundant design, and structural design.
In the event that any or all SANYO products(including technical data,services) described or
contained herein are controlled under any of applicable local export control laws and regulations,
such products must not be exported without obtaining the export license from the authorities
concerned in accordance with the above law.
No part of this publication may be reproduced or transmitted in any form or by any means, electronic or
mechanical, including photocopying and recording, or any information storage or retrieval system,
or otherwise, without the prior written permission of SANYO Electric Co., Ltd.
Any and all information described or contained herein are subject to change without notice due to
product/technology improvement, etc. When designing equipment, refer to the "Delivery Specification"
for the SANYO product that you intend to use.
Information (including circuit diagrams and circuit parameters) herein is for example only ; it is not
guaranteed for volume production. SANYO believes information herein is accurate and reliable, but
no guarantees are made or implied regarding its use or any infringements of intellectual property rights
or other rights of third parties.
This catalog provides information as of June, 1999. Specifications and information herein are subject to change
without notice.
PS No. 5977-9/9
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